Ak rivet bolt cutter modification11/30/2023 ![]() Like previous Kalashnikov-pattern rifles, the AK-74 does not have a gas valve excess gases are ventilated through a series of radial ports in the gas cylinder. The moving assembly has about 5.5 mm (0.2 in) of free travel which creates a delay between the initial recoil impulse of the piston and the bolt unlocking sequence, allowing gas pressures to drop to a safe level before the seal between the chamber and the bolt is broken. The build-up of gases inside the gas cylinder drives the long-stroke piston and bolt carrier rearward and a cam guide machined into the underside of the bolt carrier along with an ejector spur on the bolt carrier rail guide, rotates the bolt approximately 35° and unlocks it from the barrel extension via a camming pin on the bolt. After ignition of the cartridge primer and propellant, rapidly expanding propellant gases are diverted into the gas cylinder above the barrel through a vent near the muzzle. The rifle's operation during firing and reloading is identical to that of the AKM. Operating mechanism The AK-74 stripped down to its major components About 50% of the parts in the AK-74 and AKM are the same (including pins, springs and screws). Compared with the preceding AKM, the AK-74 has better effective firing range, accuracy (a main development goal), and reliability. ![]() In fact, some early models are reported to have been converted AKMs, re-barreled to 5.45×39mm. These improvements were primarily the result of converting the rifle to the intermediate-calibre high velocity 5.45×39mm cartridge. It is an adaptation of the 7.62×39mm AKM assault rifle and features several important design improvements. Kryakushin's group under the design supervision of Mikhail Kalashnikov. Licensed copies were produced in Bulgaria (AK-74, AKS-74 and AKS-74U), and in the former East Germany (MPi-AK-74N, MPi-AKS-74N, MPi-AKS-74NK). Īs of 2021, most countries of the former Soviet Union use the rifle. The head of the Afghan bureau of the Inter-Services Intelligence (ISI), the intelligence agency of Pakistan, claimed that America's Central Intelligence Agency (CIA) paid $5,000 for the first AK-74 captured by the Afghan mujahideen during the Afghan-Soviet War. The rifle first saw service with Soviet forces in the Afghanistan conflict from 1979. It is chambered for the 5.45×39mm cartridge, which replaced the 7.62×39mm cartridge of Kalashnikov's earlier automatic weapons for the Soviet armed forces. While primarily associated with the Soviet Union, it has been used by many countries since the 1970s. 'Kalashnikov assault rifle model 1974') is an assault rifle designed by small arms designer Mikhail Kalashnikov in 1974. Avtomat Kalashnikova obraztsa 1974 goda, lit.
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